Q: What is the sum of all factors of the number 640,633,636 excluding 640,633,636?

 A: 480,475,234

Why is 480,475,234 the sum of all factors of 640,633,636, excluding 640,633,636?

The factors of the number 640,633,636 are: 1, 2, 4, 160158409, 320316818, 640633636.

If you add them up, you will get the total of 640,634,116. Now subtract 640,633,636 to get 480,475,234


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